Combination dental bracket.



PATENTED NOV. 19, 1907.

G. HALL.

COMBINATION DENTAL BRACKET.

APPLICATION FILED JAN. 18. 1006.

2 SHEETS-SHEET 1.

8 u ue n l'oz Jaw PATENTED NOV. 19. 19Q7.

G. HALL.

COMBINATION DENTAL BRACKET.

APPLICATION FILED JAN. 18; 1906.

2 SHEETS-SHEET wifwzoaco be adjusted to suitable heights.

' ls compact and flexible in construction and eEoReE HALL, OF LIMA,OHIO. commn'nonpamax. Jamaican.

Specification of Letters iEfatent.

Patented Nov. 19, 1907.

Application filed January 1a. 1906. smi No. 296.608.

I To all whom it may concern:.

Be it known that I, GEORGE HALL, a citi-.

zen pfthe United States, residing at Lima, in the county of Allen'andState of Ohio, have 5"invented certain new and useful Improvements inCombination Dental Brackets, of which the following is a specification.

This invention relates to improvements in coinbination dental bracketsand has feiloyits object to provide an appliance, adapted for use incertain professions, such as dentistry, which will be convenientlylocated upona support, as for instance a window frame, orpart of a roomwall, and which may The device simple. and efficient in itsmanipulation, and

provides a convenient accessory for those aged in the above namedprofession. I

he invention embodies a wall bracket'of usual. construction providedwith pivoted extensions, which are adjustable to a variety of positions,and these extensions are adapted to support the appliances requiredin-the. 2!; practice of the work of dentistry, such as a swinging.table, water heater, motor, fan, lightattachment, and machine foroperating 'theinstrumentsin practice. 4

A s stem of electric wiring is provided throng out the deviceforfnrnishing power to the operating parts, heat to the water heater,andlight to thedamp attachment.

The invention further consists in certain novel features of constructionand combinations andarrangements of parts as hereinafter described,-more particularly pointed out in the clain1s, and as illustrated in theaccox'nlpanying drawings. T 1e accompanyingdrawlngs lllustrateone 4cexample of the physicalembodiment of the" invention, constructedaccording to the best mode I.l1ave so fardevised for its practicalapplication.

Referring to the drawings: Figure l is a perspective view of thecomplete invention,

shown as supported fronna suitable position. Fig. 2 :is a sldc elevationof the operating parts of the bracket. Fig. 3 is a' broken detailview,enlarged, as seen from the rear side of F ig'. 2, showingtheadjustable connecting means of the arts comprising the bracket. Fig. 4is a sectional view of extreme outer ortensionof the bracket, or themotor Supporting:arm, showing theprovision for carrying theconcealedelectric wires.

The base or support A of the bracket is secured by suitable means, suchas screws, at the proper height, upon a solid support and this basepiece is provided with-lugsB, l3, in which the vertical member 0 ispivoted, thus providing a laterally swinging movement of the member C,and also the entire apparatus supported thereon. The swinging member Cis provided with two bolts 1, 2, whichsupport the frame arms 3 3. Thesearms are formed at their outer ends with a box 4, which box forms thepivotal support for the bracket arms 5, 5, which are formed at theirconverging ends with sin-integral head 6, the bracket arms being pivotedthereto at 7, 7" respectively.

As seen more clearly inFig.3, the frame bar 3 pivotally connected to theframe or bracket 55 provided with a'ratchet head 8 to'which the bracketarm 5 is adjustably held by the pawl 9, which is held to position by aspring 10, said pawl being fast on the .axle of the wheel 1] providedfor conveniently turnin the pawl out of engagement with the ratchet whenit is desired to adjust the height of the bracket arms 5 and- 5, thusproviding for a vertical adjustment of the said arms. A head 12, isformed preferably integral with the arm 5 and ivotally supports, throughthe medium oft e seated head 12,-an arm 13 on which arm 13, the table 14is in turn pivotally sup orted, as usual. An electric light 16, may esiiported on the boxing 4, on the rod 15, if so esired, and this light maybe provided with the usual reflector 16.

such articles as necessary.' 1

- As seen more clearly in Fig. 4,.the extension arm 18.is formed withside flanges 18 providing an open construction, for a pur- -'pose to bedescribed, and said arm is formed with a depending lug or pintle 19.,adapted to 'be seated in asocket 20 of the headb Wherein it is free toturn. A recessed head 21 is Thctable may also serve -as a support forthe water heater 17 and any other formedat the extreme endof-the'extension form a ball bearing connection between head 21 and thebase 23 of an electric motor 24. As shown in El 1, this motor may beused 18 and is adapted to receive the balls 22 to for running a .an orserve the function of' driving the dental engine. I do not claim thismotor and its driving connections as part of my invention, so it neednot be further described here,

through the opening 46 in the head 6, u into and through the conduit 47formed in t 1eextension arm 18, through the aperture 48 of the head 21and so to the motor. cross pins 49 may be introduced through the conduit47 to support the wire if desired.

The lighting wire is carried from the box 4 through the hollow standard15 and out at its upper end, and from thence connected with the lightappliance. The heating wire is connected by an attachment 50 to the box4 and receives current from the wires within the flexible tube 44.

It will be observed from the above description taken with the drawingsthat the bracket arms 5 5 are vertically adjustable; the motor carryingextension 18 is movable in a hori zontal plane to the desired positionfor operation; the pulley head is provided with a spring support whichinsures a uniform and regular connection by cable between the wheels 36and 3&4 and obviates vibration between the parts of the machine.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent is 7 1. A dental bracket comprising a base,a vertical hollow frame member pivoted there to capable of-lateralswinging movement, horizontal parallel frame arms having their endsengaged in the hollow vertical member and bolts passing through saidvertical memher to secure the arms therein, the outer ends of the framearms terminating in a hollow Rods or,

box, bracket arms pivoted in said hollow box, the converging ends of thebracket arms terminating in supporting head, the'lowermost parallelframe bar provided at its outer end with a ratchet head, a wheel pivotedin the lowermost bracket arm, a pawl on the axle of said wheel to engagethe ratchet head,

and a spring to hold the pawl in properengagement therewith.

2. A dental bracket comprising a base, a vertical frame member pivotedthereto, horizontal frame arms having their ends engaged in the verticalmember, the outer ends of the frame arms terminating in a hollow box,bracket arms pivoted in said hollow box, the converging ends of thebracket arms terminating in a supporting head, and pawl and ratchetmechanism on the irame bars and bracket arms to hold the members inadjustable relation.

3. A dental bracket comprising a base, a vertical frame member pivotedthereto, horizontal frame arms having their ends engaged in the Verticalmember, the outer ends of the frame arms terminating in a hollow box,bracket arms pivoted in said hollow box, the converging ends of thebracket arms terminating in a supporting head and a motor sup portarranged on said head, pawl and ratchet mechanism on the frame bars andbracket arms to hold the members in adjustable relation, and a tablepivotally mounted upon the bracket arms.

In testimony \rbereol l aflix my signature in presence of two witnesses.

GEORGE llAlili.

Witnesses:

'loniAs TI. Foixr'li. JAeon (h s'rnn.

